Answer:
Humans.
Explanation:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
A fruit fly somatic cell contains 8 chromosomes. How many chromosomes will each fruit fly gamete contain?
Answer:
The somatic cells of fruit flies contain eight chromosomes, which means they have two sets of four chromosomes. Meiosis is the process by which sex cells are produced. Sex cells are haploid, which means they have one set of chromosomes.
Explanation:
Fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes. The process through which sex cells are created is called meiosis. The haploid nature of sexual cells means that they only have one set of chromosomes.
What is Meiosis?In sexually reproducing organisms, meiosis is a unique type of cell division of spermatids that results in the production of gametes, such as sperm or egg cells. Two rounds of division are necessary, and the end product is four cells with just one duplicate of each chromosome.
When the chromosome count in daughter cells is decreased to half that of the parent cell during meiosis, the process is known as reduction division. For instance, while a human cell has 46 chromosomes, the egg and sperm cells created by meiotic division only have 23. In the above given example, fruit flies have two sets of four chromosomes as their somatic cells have eight chromosomes.
Thus, fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes.
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I don’t understand how we can see the sky and clouds and when your outer space you don’t see the sky or clouds you only see the ocean and the land?
how does adrenal glands overcome the low surrounding temperature at high altitude?
Answer:
The major secretions of the adrenal cortex (Box 4.2) are cortisol (the main ... for steroid synthesis is captured by receptors which bind low-density lipoproteins (LDL) ... It is essential to do this slowly and progressively to avoid precipitating acute
Explanation:
4 The finger-like structure in the wall
of the small intestine through which
food is absorbed into the blood-
stream is called
A duodenum.
B bile duct
C villus.
D pancreas.
E ileum.
Answer:
...................C
[tex]{ \blue{ \tt{option \: (c)}}} \: { \green{ \boxed{ \red{ \sf{ \underline{villus}}}}}}[/tex]
Explanation:-
Villus, plurally called villi, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. Important villous membranes include the placenta and the mucous-membrane coating of the small intestine.
4. Which organ system in humans is most directly involved in the
transport of oxygen?
excretory
nervous
circulatory
O digestive
Answer:
C. Circulatory System
Explanation:
The circulatory system (cardiovascular system or the vascular system) is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
A diagram that shows the amount of energy that moves from one feeding level to another in a food web is
A: food chain
B: energy pyramid
C: ecosystem
D: niche
Energy plays a important role in the propagation of life in ecosystems. Food chain shows the amount of energy that moves from one feeding level to another in a food web. Thus, the correct option is A.
What is food chain?A food chain is defined as the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism.
The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain. A system of interlocking food chains is called a food web.
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explain what happens during old feild succession
Answer:
If undisturbed, an open field over time will be invaded by shrubs, which in turn will be replaced by saplings, young trees, and eventually a mature forest. Foresters often refer to these phases as the grass and forbs stage, shrub and sapling stage, pole stage, and mature forest.
Explanation:
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PLEASE HELP MEE!!!
Diffusion, osmosis, facilitated diffusion, and active transport are?
A. ways cells make food
B. ways cells move materials around
C. ways cells use the sunlight
D. ways that cells reproduce
4. in the diagram below strand 1 and 2 to represent the two complementary strand a portion of a DNA double helix. The sequence of strand 1 is indicated below what is the sequence of strand 2?
a.AGCA
b.CTAC
c.TCGT
d.GATG
The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light colouration, which effectively camouflaged them against the light-coloured trees and lichens upon which they rested. However, due to widespread pollution during the Industrial Revolution in England, many of the lichens died out, and the trees which peppered moths rested on became blackened by soot, causing most of the light- coloured moths to die off due to predation. At the same time, the dark-coloured moths flourished because of their ability to hide on the darkened trees. Since then, with improved environmental standards, light-colored peppered moths have again become common, but the dramatic change in the peppered moth's population has remained a subject of much interest and study Which type of selection is illustrated by the peppered moth's during the Industrial Revolution?
Answer:
Directional selection
Explanation:
The phenotype of individuals and the environment where they live, interact and determines the genes´ destiny in space and time. The result of this interaction and the gene destiny is Natural Selection. Natural selection selects beneficial alleles and increases their frequency in the population.
Among the different types of natural selection, we can find "directional selection".
Directional selection increases in the proportion of individuals with an extreme phenotypic trait, in this case, dark moths color. This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
In the exposed example, the moth population must be adapted to its environment. The coloration is related to survival strategies. In the beginning, they expressed light coloration useful to camouflage and to avoid predators while resting on their lighted-substrate (lichens and light-colored trees). After the severe environmental impact of the Industrial Revolution, the environment changed. This change acted as a selective pressure. Lichens died, and trees became darker. Light moths were exposed and died after predation. Probably at one point of the evolution, the gene for color mutated, and dark-colored moths appeared. By natural selection, the mutation got fixed. This example reflects directional selection because the population turned from light color to dark color.
In the attached files you will find two graphs expressing directional selection.
What is competition? Give example
Answer:
Competition is a relationship between organisms that strive for the same resources in the same place. ... Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area.
Hope it helps!!!
What is a Cladogram?
Answer:
a branching diagram showing the cladistic relationship between a number of species
what is the amino acid sequence of the complementary mRNA strand of the DNA strand
Answer:The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA. b. Template strand is the DNA strand off which the mRNA is synthesized
Explanation: The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA. b. Template strand is the DNA strand off which the mRNA is synthesize
2. Your teacher instructed you to measure the salinity of brine you will use in
curing fish. Which of these will you do?
a.
Recall and master the procedure in using a salinometer
b. Review and master the procedure in using the thermometer
c. Review the procedure in using a psychrometer
d. Review the procedure in using a refractometer
Answer:
a. Recall and master the procedure in using a salinometer
Explanation:
Salinometer, which is also known as salimeter is a laboratory equipment used to measure the salinity of a solution. Salinity refers to the concentration/amount of salt in a solution.
According to this question, a student was instructed by his/her teacher to measure the salinity of brine used in curing fish. This means that to do this, the student will have to make use of a SALINOMETER. In order to use the salinometer, the student has to recall and master the procedure in using a salinometer.
Please help ASAP!!!! 15 points
Answer:
2= cytoplasm
1= cell membrane
3= DNA
Explanation:
That all i know
Melosis results in the formation of
A:2 genetically similar cells
B:2 genetically different cells
C:4 genetically similar cells
D:4 genetically different cells
Answer:
c 4genetically similar cells
HELPPPPPPPPPPPPP!!!
Answer:
i think the answer is the one you clicked on, the first answer.
Explanation:
URGENTT
A) Cell #1 has a cell wall, and Cell #2 is eukaryotic
B) Cell #1 has membrane-bound organelles, Cell #2 has no membrane organelles
C) The nucleus is not present in Cell #2 and Cell #1’s DNA is enclosed by a membrane
D) Cell #2 is prokaryotic. Cell #1 is eukaryotic
Answer:
A) Cell #1 has a cell wall, and Cell #2 is eukaryotic
Which of the following statements is likely to also be true of the TRAPPIST-1 planets based the characteristics of the terrestrial planets in our solar system?
Answer:
The star we today call TRAPPIST-1 was first discovered in 1999 by ... Telescope and ground-based telescopes discovered that the system ... Three of these planets are in the theoretical "habitable zone," the area around a star where rocky planets are most likely to hold liquid water. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation and evolution of terrestrial planets that formed in the same protoplanetary disk
Explanation:
If the population of beetles in model 1 mated naturally would your prediction for the offspring in Question 4 still be valid? Explain.
Complete question:
Model 1 – Controlled (Selective) Mating: (Imagen in the attached files, PNG)
4. If each mating pair has one offspring, predict how many of the first generation offspring will have the following genotypes.
BB Bb bb
7. If the population of beetles in Model 1 mated naturally would your prediction for the offspring in Question 4 still be valid? Explain.
Answer:
7) If the population of beetles in model 1 mated naturally, the prediction for the offspring in Question 4 would not be valid. The number of individuals with each genotype in the F1 would change because there would be other possible types of crosses: Bb x bb, Bb x Bb, bb x bb
Explanation:
Due to technical problems, you will find the complete explanation in the attached files (PDF)
Suppose if all the bones of the skull (facial bones) are fused together, which function would you not be able to carry out?
Answer:
to masticate food
Explanation:
In adults, all the bones of the skull, except one, are fused together by immovable joints referred to as sutures. The sutures are fibrous joints which hold the bones of the skull together to form a rigid and strong structure that protects the brain. Skull bones fuse around two-years (18 to 24 months after birth). The only skull bone that is not fused by sutures in adults is the mandible, which is used to masticate food.
Made up of protein and DNA, _____ contain genetic information within a eukaryotic cell.
Is a pencil a biotic or abiotic matter?
A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?
a)10%
b)25%
c)75%
d)100%
Write a hypothesis about pH level on common household solutions based on physical and chemical properties.
Answer: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
Answer:
Sample Response: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
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Anna is creating a model to show atoms  of solid bromine and gases bro mine how should her three models differ.
Answer:
The size of the atoms should vary depending on the state. The mass of the atoms should vary depending on the state.
Explanation:
You move a 12-newton box up a 6-meter ramp.
In order to find out how much power you created, what would you need to know?
A.the acceration
B. the time
C.the distance
D.the temperature

Which statement defines a magnet?
1. An object that applies a force on electric fields.
2. An object that attracts or repels electrically conductive metals.
3. An object that can attract or repel other magnets and certain metals.
4. An object that applies a force on objects with mass.
Answer:
1. An object that applies a force on electric fields
Explanation:
Answer:
1. An object that applies a force on electric fields.
Explanation:
A magnet carries an electric force, therefore repelling or attract others with an electric force.
Which taxon group is the largest? *
A. Domain
B. Species
C. Phylum
D. Kingdom
Answer:
Option D) Kingdom is the largest group in taxon
i hope this might be the answer and help u
Identify the structure in the picture labeled as D in the picture above. (Level 1)
Answer:
which picture. ??? no pic no help sorry